package filter;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Servlet Filter implementation class shareWithMe
 */
@WebFilter( "*.do" )
public class shareWithMe implements Filter {

    /**
     * Default constructor. 
     */
    public shareWithMe() {
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see Filter#destroy()
	 */
	public void destroy() {
		// TODO Auto-generated method stub
	}

	/**
	 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
	 */
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
			
		HttpServletRequest Req = (HttpServletRequest) request;
		HttpServletResponse Resp = (HttpServletResponse) response;
		
		HttpSession session = Req.getSession();
		Boolean IsLogin = (Boolean) session.getAttribute("loginFlag");
		System.out.println("filter : IsLogin " + IsLogin);
		if (IsLogin == null || !IsLogin)
		{
			//Resp.sendError(HttpServletResponse.SC_UNAUTHORIZED);
			Resp.sendRedirect(Req.getContextPath()+"/Index.jsp");
			return;
		}

		chain.doFilter(request, response);
	}

	/**
	 * @see Filter#init(FilterConfig)
	 */
	public void init(FilterConfig fConfig) throws ServletException {
		// TODO Auto-generated method stub
	}

}
